Your Free Barcode & QR Code Generator
Generate professional QR codes, barcodes, UPC codes, and ISBN codes for free. Built for publishing, product labels, and inventory workflows.
Free Barcode Generators
Choose a format and create a download without an account or watermark.
PDF to QR Code
Convert PDF files to QR codes for easy sharing
Why Choose Barcode Buddy?
Practical tools for creating standards-based codes without signup or fees.
Made for Amazon KDP Publishers
Turn an ISBN you already own into a print-ready ISBN-13 barcode, with optional price add-on, at the resolution Amazon KDP and print-on-demand printers expect.
We don't issue ISBNs. Buy yours from Bowker or your national ISBN agency, then create the barcode here.
Create ISBN BarcodeChoose the Right Barcode Format
Compare common barcode types and choose the format that matches your workflow.
Traditional Barcodes
Linear barcodes like EAN-13 and Code 128 are designed for retail products and inventory management.
- • EAN-13: International retail standard
- • Code 128: Versatile alphanumeric encoding
- • UPC-A: North American retail standard
QR Codes
2D codes that store much more data including URLs, contact info, WiFi credentials, and text.
- • High data capacity
- • Error correction capability
- • Mobile-friendly scanning
Data Matrix
Compact 2D codes ideal for small spaces and industrial applications with high reliability.
- • Space-efficient design
- • Industrial-grade durability
- • High error correction
ISBN for Publishers
ISBN-13 barcodes are essential for book publishing, especially on platforms like Amazon KDP. They identify your book uniquely and include pricing information.
- • Required for retail book sales
- • Includes pricing and currency
- • Compatible with all bookstores
Professional Quality
Our generators create industry-standard barcodes that work with all major scanning systems and point-of-sale terminals worldwide.
- • Standards-compliant output
- • Multiple export formats
- • Print-ready quality
Frequently Asked Questions
Get answers to common questions about barcodes, QR codes, and these generators.
What are barcodes and how do they work?
Barcodes are visual representations of data that can be scanned by machines. They consist of parallel lines with varying widths and spacing that encode information. When scanned, optical scanners decode the pattern into digital data that can be processed by computers or point-of-sale systems.
What's the difference between QR codes and traditional barcodes?
QR codes are 2D barcodes that can store much more information than traditional 1D barcodes. While traditional barcodes store data horizontally, QR codes store data both horizontally and vertically, allowing them to hold URLs, text, contact information, WiFi credentials, and much more data.
How do I choose the right barcode type for my business?
Choose based on your use case: EAN-13 for international retail products, UPC-A for US retail, ISBN-13 for books and publishing, Code 128 for general purposes and inventory, QR codes for digital interactions and marketing, and Data Matrix for small spaces or industrial applications.
Are the generated barcodes compatible with all scanners?
Yes, our barcodes follow international standards (GS1, ISO) and are compatible with all standard barcode scanners, POS systems, mobile apps, and inventory management systems that support the respective barcode formats.
What is the recommended resolution for printing barcodes?
For optimal scanning, print barcodes at 300 DPI or higher. Ensure sufficient quiet zones (blank space) around the barcode and maintain proper contrast between bars and background. Our generators provide high-resolution outputs suitable for professional printing.
How do I use ISBN barcodes for Amazon KDP?
Generate an ISBN-13 barcode with your book's ISBN number and price using our ISBN generator. Amazon KDP accepts high-resolution barcode images (PNG, JPG) that you can upload during the book cover creation process. Ensure the barcode is placed on the back cover with adequate white space around it.
Can I use these barcodes commercially?
Yes, all barcodes generated are free to use for commercial purposes without any restrictions. However, ensure you have the rights to use the data encoded in the barcode (ISBN numbers, product codes, etc.) and follow relevant industry standards for your specific use case.
What file formats are available for download?
Our generators support multiple high-quality formats including PNG (for web and print), SVG (vector format for scalability), and PDF (for professional printing and documentation) to meet different use cases and printing requirements.
Ready to Get Started?
Free to use, no signup, no watermarks. Everything runs in your browser and downloads in print-ready quality.
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